I-Corps: Controlled-Trajectory Rapid Compression and Expansion Machine

I-Corps：受控轨迹快速压缩和膨胀机

• 批准号: 1841666
• 负责人: Zongxuan Sun
• 金额: $ 5万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-09-15 至 2019-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1841666&HistoricalAwards=false
• 关键词: Corps; Controlled; Trajectory; Rapid; Compression

The broader impact/commercial potential of this I-Corps project is to enable clean energy solutions for combustion systems and renewable fuels by providing a powerful and high throughput experimental instrument for combustion and fuel characterization, especially for the transportation sector. In the U.S alone, the transportation sector, which is dominated by internal combustion engines, accounts for about 28% of total energy consumption, 70% of the total petroleum consumption and 27% of the total greenhouse emissions. The key to higher energy efficiency and lower emissions for this sector lies in a better understanding of physical and chemical characteristics of combustion processes leading to the development of advanced engines as well as alternative fuels, especially from renewable sources. The controlled trajectory rapid compression and expansion machine (CT-RCEM) addresses this pressing need of the combustion community by offering significant improvements over the conventional rapid compression machines (RCM). The CT-RCEM has the potential to transform the RCM market and bring unique benefits to end users that include universities, government research laboratories, automotive industry and oil and gas industry. This I-Corps project uses a precise motion controller with a high speed large force electrohydraulic actuator to mitigate the most fundamental limitation of the conventional RCM, an inherently rigid actuation system. The typical operation of an RCM involves, as the name suggests, rapid compression of air-fuel mixture by high speed motion of a piston in combustion chamber, leading to the ignition of the fuel. The associated data provides valuable insight into the combustion characteristics. However, the piston trajectory during this compression process is highly facility dependent and any changes in the operating parameters require hardware intervention and subsequent recalibration, leading to repeatability and reproducibility issues as well as a long turnaround time between experiments. The controlled trajectory rapid compression and expansion machine alleviates this limitation with its precisely controllable actuation system. The piston motion profile can be changed by digitally changing the piston reference trajectory assigned to the motion controller. This ability to tailor the piston trajectory allows the CT-RCEM to provide significant advantages and new capabilities over the conventional RCM.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该I-Corps项目的更广泛的影响/商业潜力是通过为燃烧和燃料表征提供功能强大且高的吞吐量实验工具，以实现燃烧系统和可再生燃料的清洁能源解决方案，尤其是对于运输部门。仅在美国，由内燃机主导的运输部门约占总能源消耗的28％，占石油总消耗量的70％和总温室排放量的27％。该领域提高能源效率和降低排放的关键在于，更好地了解燃烧过程的物理和化学特征，导致高级发动机以及替代燃料的发展，尤其是可再生能源。受控轨迹快速压缩和扩展机（CT-RCEM）通过对常规快速压缩机（RCM）的重大改进来解决对燃烧社区的紧迫需求。 CT-RCEM有可能改变RCM市场，并为包括大学，政府研究实验室，汽车行业以及石油和天然气行业的最终用户带来独特的好处。该I-Corps项目使用具有高速大力电力执行器的精确运动控制器来减轻常规RCM的最基本限制，这是一种固有的刚性驱动系统。顾名思义，RCM的典型操作涉及通过燃烧室中活塞的高速运动快速压缩空气燃料混合物，从而导致燃料点火。相关数据提供了对燃烧特性的宝贵见解。但是，在此压缩过程中的活塞轨迹是高度依赖性的，并且操作参数的任何变化都需要硬件干预和随后的重新校准，从而导致可重复性和可重复性问题以及实验之间的漫长周转时间。受控的轨迹快速压缩和扩展机通过其精确控制的驱动系统减轻了这一限制。可以通过数字更改分配给运动控制器的活塞参考轨迹来更改活塞运动轮廓。这种调整活塞轨迹的能力使CT-RCEM能够比传统的RCM提供显着的优势和新功能。该奖项反映了NSF的法定任务，并被认为是通过基金会的智力优点和更广泛的影响来通过评估来获得支持的。